Cost-effective bistatic radar with ultrawide-band radio

UWB Bistatic Radar Sensor: Across Channels Evaluation

“…Transmission power 24.6 dBm/MHz and baseline 2.3 m algorithm. Finally, the weighting (2) greatly enhances the stability and reliability of target distance estimation as compared to our previous work [24] (see Figure 6).…”

“…An early study in this domain for monitoring and safety applications is presented in [22], where the accumulated echogram of a multipath delayed signal is constructed. Stemming from this idea, [23], [24] demonstrated how CIR measurements can be utilized to create a positioning infrastructure. Another study mentioned in [25], employed CIRs to train a Convolutional Neural Network (CNN) model for estimating target positions, while [26] performed a geometrical mapping of the CIRs to reveal reflection sources and derive the occupancy of passengers in the aeronautic field, thus building an IoT network bringing significant operational potentials, such as dynamic control of passenger boarding or disembarkation sequences under pandemic restrictions.…”

“…Building upon [24], the contributions of this paper are threefold: i) A comparison between the previous generation of the QORVO UWB module and the newly released generation for radar applications to address the lack of information in the existing literature and contribute to the advancement and optimization of UWB radar systems; ii) A weighting function is introduced to enhance the estimation of the time location of MPCs scattered from the target; iii) An IoT architecture to efficiently handle and organize data for the selected UWB modules.…”

A tag-less ultrawide-band passive tracking system

“…Once a moving entity enters the scene, we can compare the background and RF spectrum to localise the entity by observing the CIR time variations. This paper extends the preliminary evaluation done in [23] of an ultrawide-band bistatic radar in the following ways:…”

“…An interesting way to use the UWB sensor is in a radar-like system inspired by the pulsed radar. As described in [23], [24], when an entity is moving in an RF-flooded environment, the target's location can be detected thanks to the induced disturbance on the RF spectrum. This kind of localisation technique is referred to as multipath-assisted localisation, based on detecting the RF scattering source leveraging the multipath components or the originally transmitted signal.…”